21411313

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{1487}}^1$

素因数の和:1533

約数の個数: 24

約数和(自身を含む): 28498176

約数和(自身を除く): 7086863

約数列:

[1, 7, 11, 17, 77, 119, 121, 187, 847, 1309, 1487, 2057, 10409, 14399, 16357, 25279, 114499, 176953, 179927, 278069, 1259489, 1946483, 3058759, 21411313]

約数ペア:

[(1, 21411313), (7, 3058759), (11, 1946483), (17, 1259489), (77, 278069), (119, 179927), (121, 176953), (187, 114499), (847, 25279), (1309, 16357), (1487, 14399), (2057, 10409)]